CN109113833B - Dual-cavity independent oil-gas separator - Google Patents
Dual-cavity independent oil-gas separator Download PDFInfo
- Publication number
- CN109113833B CN109113833B CN201811126579.0A CN201811126579A CN109113833B CN 109113833 B CN109113833 B CN 109113833B CN 201811126579 A CN201811126579 A CN 201811126579A CN 109113833 B CN109113833 B CN 109113833B
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- Prior art keywords
- oil
- gas
- separation mechanism
- separation
- coarse
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- 238000000926 separation method Methods 0.000 claims abstract description 209
- 230000007246 mechanism Effects 0.000 claims abstract description 97
- 239000003921 oil Substances 0.000 claims abstract description 83
- 238000003860 storage Methods 0.000 claims abstract description 7
- 239000010705 motor oil Substances 0.000 claims abstract description 5
- 238000005192 partition Methods 0.000 claims description 42
- 230000007704 transition Effects 0.000 claims description 18
- 238000001914 filtration Methods 0.000 claims description 9
- 239000000945 filler Substances 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 94
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/0433—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a deflection device, e.g. screen
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/0438—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a filter
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The invention discloses a double-cavity independent oil-gas separator, which comprises a separator body plate, a full-load side oil-gas separation assembly and a partial-load side oil-gas separation assembly, wherein the full-load side oil-gas separation assembly is arranged on the separator body plate; the part-load oil-gas separation assembly is arranged on the separator body, and the full-load side oil-gas separation assembly is arranged on the separation body plate and is positioned on the opposite side of the part-load side oil-gas separation assembly. According to the invention, the two oil-gas separation mechanisms, namely the partial load side oil-gas separation mechanism and the full load side oil-gas separation mechanism, are respectively connected with the air inlet manifold side and the clean air pipe behind the air filter, and the partial load oil-gas and the full load oil-gas can be led to enter the corresponding separation mechanisms respectively for separation due to the difference of the pressure in the air filter of the air inlet manifold side and the pressure in the air filter of the clean air pipe, so that the oil-gas separation efficiency is improved. The filtered engine oil returns to the engine oil pan through the respective oil storage tanks at the two ends.
Description
Technical Field
The invention belongs to the technical field of automobile engines, and particularly relates to a double-cavity independent oil-gas separator.
Background
When an automobile engine works, high-temperature and high-pressure gas combusted in a combustion chamber during a power stroke (both intake and exhaust valves are in a closed state) can flow into a crankcase along a gap between a piston assembly and a cylinder wall. The engine exhaust gases that enter the crankcase contain water vapor, sulfur dioxide, and other impurities that are produced by incomplete combustion. The oil is emulsified after the water vapor is condensed, and sulfur dioxide can cause the oil to deteriorate to cause corrosion of parts. The engine is provided with crankcase ventilation means to enable the exhaust gases to be discharged while the oil in the blow-by gases is effectively separated back to the lubrication system, avoiding the occurrence of burning the oil. And the oil separator is installed in the passage of the crankcase ventilation device to perform oil mist separation. The existing oil-gas separation device is completed in one set of separation mechanism aiming at the separation of full-load oil gas and partial-load oil gas, and the arrangement mode of the separation mechanism can enable the oil-gas separation efficiency to be low, and the separation efficiency can be reduced along with the increase of the driving mileage.
Disclosure of Invention
The invention aims at: solves the defects in the prior art and provides a double-cavity independent oil-gas separator.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the double-cavity independent oil-gas separator comprises a separator body plate, a full-load side oil-gas separation assembly and a partial-load side oil-gas separation assembly; the partial load oil-gas separation assembly is arranged on the separator body and comprises a first coarse separation mechanism, a first fine separation mechanism communicated with the first coarse separation mechanism, and a first air inlet which is formed in the separator body plate and communicated with the first coarse separation mechanism, wherein one side of the first fine separation mechanism away from the first coarse separation mechanism is communicated with an air inlet manifold of an engine;
the full-load side oil-gas separation assembly is arranged on the separation body plate and is positioned on the opposite side of the partial-load side oil-gas separation assembly, the full-load side oil-gas separation assembly comprises a second coarse separation mechanism, a second fine separation mechanism communicated with the second coarse separation mechanism, and a second air inlet which is formed in the separator body plate and communicated with the second coarse separation mechanism, and one side, far away from the second coarse separation mechanism, of the second fine separation mechanism is communicated with an air filter of an engine.
Further, the first coarse separation mechanism comprises a coarse separation cavity arranged on the separator body, an opening communicated with the first air inlet is formed in the bottom of the coarse separation cavity, a first partition plate extending upwards is arranged on the right side of the bottom opening of the coarse separation cavity, a second partition plate inclined to the left side of the first partition plate is connected to the top end of the first partition plate, a filter plate extending to the first partition plate is arranged on one side, close to the bottom of the coarse separation cavity, of the second partition plate, a third partition plate extending downwards is arranged on the top of the coarse separation cavity, and an air vent is formed between the third partition plate and the second partition plate; the second coarse separation mechanism has the same structure as the first coarse separation mechanism.
Further, the first fine separation mechanism comprises a fine separation cavity, the fine separation cavity is located on one side of the coarse separation cavity, a fourth partition plate is arranged on one side, close to the coarse separation cavity, of the fine separation cavity, small air inlet holes for oil gas are distributed in the fourth partition plate, a filtering device is further arranged on the fourth partition plate, the filtering device is attached to the small air inlet holes, an air outlet is formed in the bottom of the filtering device, and filter cotton used for filtering the oil gas is arranged in the filtering device.
Further, a transition cavity is formed in the area between the first partition plate and the third partition plate, and a small hole oil return groove concavely arranged downwards is formed in the bottom of the transition cavity; the full-load side oil-gas separation assembly is also internally provided with a transition cavity and a small-hole oil return groove.
Further, a PCV valve is provided between the first fine separation chamber and the intake manifold side of the engine.
Further, a one-way valve is arranged at the communication part of the first fine separation mechanism and the air inlet manifold; and a one-way valve is also arranged at the communication part of the second fine separation mechanism and the air filter.
Further, the separator body plate is provided with a mounting hole for placing a high-voltage coil, wherein the mounting hole is positioned between the full-load side oil-gas assembly and the partial-load side oil-gas assembly.
Further, an oil filler cap for adding engine oil is arranged on the separator body plate, and the oil filler cap is located on one side, away from the first fine separation cavity, of the first coarse separation cavity.
Further, the peripheral edge of the separator body plate is provided with a mounting screw hole.
Due to the adoption of the technical scheme, the invention has the beneficial effects that:
the invention is provided with two oil-gas separation mechanisms, namely a partial load side oil-gas separation mechanism and a full load side oil-gas separation mechanism, which are respectively connected with a clean air pipe behind an air filter and an air inlet manifold side. The pressure difference between the crankcase Pressure (PCC) and the inlet (PIM) and clean air duct (PB-TC) determines the trend of the crankcase blow-by. When the supercharger does not work, PB-TC is larger than PCC and larger than PIM, the blowby gas path is a first separation path, the blowby gas is separated by a partial load side oil-gas separation mechanism, and separated oil gas enters the side of an intake manifold; after the supercharger is in operation, PIM is more than PCC and more than PB-TC, the blowby gas path is a second separation path, oil gas is separated through a full-load side oil-gas separation mechanism, and the separated oil gas enters a clean air pipe after an air filter. The oil gas can be separated more finely by arranging the two separating mechanisms, so that the oil gas separation efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic illustration of the present invention;
FIG. 2 is a cross-sectional view of a part load side oil and gas assembly of the present invention;
FIG. 3 is a cross-sectional view of a full load side oil and gas separation module of the present invention.
Reference numerals: 1-separator body plate, 2-part load side oil and gas assembly, 210-first coarse separation mechanism, 211-first coarse separation chamber, 212-opening, 213-first baffle, 214-second baffle, 215-filter plate, 216-third baffle, 217-vent, 220-first fine separation mechanism, 221-fine separation chamber, 222-fourth baffle, 223-small inlet orifice, 224-filter device, 225-first fine separation oil reservoir, 230-first inlet orifice, 240-PCV valve, 250-first transition chamber, 260-first small orifice oil return tank, 270-intake manifold side, 3-full load side oil and gas assembly, 310-second coarse separation mechanism, 311-second coarse separation chamber, 320-second fine separation mechanism, 330-second inlet orifice, 340-second transition chamber, 350-second small orifice oil return tank, 360-second fine separation oil reservoir, 370-fifth baffle, 380-clean air after-filter side, 4-flap, 5-mounting orifice, 6-mounting screw hole.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.
The terms "first," "second," "third," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
The terms "parallel", "perpendicular", and the like do not denote that the components are required to be absolutely parallel or perpendicular, but may be slightly inclined. For example, "parallel" merely means that the directions are more parallel than "perpendicular" and does not mean that the structures must be perfectly parallel, but may be slightly tilted.
The terms "horizontal," "vertical," "overhang," and the like do not denote that the component is required to be absolutely horizontal or overhang, but may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
Furthermore, the terms "substantially," "essentially," and the like, are intended to be limited to the precise form disclosed herein and are not necessarily intended to be limiting. For example: the term "substantially equal to" does not merely mean absolute equality, but is difficult to achieve in actual production and operation, and generally has a certain deviation. Thus, in addition to absolute equality, "approximately equal to" includes the above-described case where there is a certain deviation. In other cases, the terms "substantially", "essentially" and the like are used in a similar manner to those described above unless otherwise indicated.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The invention discloses a double-cavity independent oil-gas separator, which is shown in figure 1 and comprises a separator body plate 1, a partial load side oil-gas separation assembly 2 and a full load side oil-gas separation assembly 3; the part-load oil and gas separation assembly 2 is mounted on the separator body 1, and the full-load side oil and gas separation assembly 3 is also mounted on the separator body 1 and is located on the opposite side of the part-load oil and gas separation assembly 2. The part-load oil-gas separation assembly 2 comprises a first coarse separation mechanism 210, a first fine separation mechanism 220 communicated with the first coarse separation mechanism 210, and a first air inlet 230 which is formed on the separator body plate 1 and communicated with the first coarse separation mechanism 210 and is used for enabling crankcase blowby gas to enter, wherein one side, away from the first coarse separation mechanism 210, of the first fine separation mechanism 220 is communicated with an air inlet manifold of an engine, and a PCV valve 240 is further arranged between the first fine separation mechanism 220 and the air inlet manifold of the engine. The part-load oil gas that enters the part-load oil gas separation assembly 2 through the first intake port 230 enters the first coarse separation mechanism 210 for the first separation, then enters the first fine separation mechanism 220 for the second separation, and finally enters the engine intake manifold side through the exhaust port after passing through the PCV valve 240.
The full-load side oil-gas separation assembly 3 comprises a second coarse separation mechanism 310, a second fine separation mechanism 320 communicated with the second coarse separation mechanism, and a second air inlet 330 which is formed on the separator body 1 and communicated with the second coarse separation mechanism 310 and is used for enabling crankcase blowby gas to enter, wherein one side, away from the second coarse separation mechanism 310, of the second fine separation mechanism 320 is communicated with an air filter of an engine. The full load side oil and gas entering the full load oil and gas separation assembly 3 through the second air inlet 230 enters the second coarse separation mechanism 310 for first separation, then enters the second fine separation mechanism 320 for second separation, and finally enters the clean air pipe side 380 after the engine air filter through the air outlet.
In the present invention, the first coarse separation mechanism 210 includes a coarse separation chamber 211 disposed on the separator body 1, the coarse separation chamber 211 is covered on the separator body 1, an opening 212 communicating with the first air inlet 230 is disposed at the bottom of the coarse separation chamber 211, part of the load side oil gas enters the coarse separation chamber 211 through the opening 212, a first partition 213 extending upward is disposed at the right side of the bottom opening of the coarse separation chamber 211, and a second partition 214 inclined to the left side of the first partition 213 is connected to the top end of the first partition 213. A filter plate 215 extending to the first partition plate 213 is disposed on one side of the second partition plate 214 near the bottom of the coarse separation chamber 211, a third partition plate 216 extending downward is disposed on the top of the coarse separation chamber 211, and a vent 217 is formed between the third partition plate 216 and the second partition plate 214. The part load side oil introduced into the rough separation chamber 211 through the opening 212 collides with the filter plate 215 and the second partition 214 during the rising, and at the same time, the second partition 214 is inclined in such a manner that the oil and gas is moved in a direction in which the second partition 214 extends upward by changing the moving direction of the oil and gas, and then the oil and gas moves around the second partition 214 and leaves the rough separation chamber 211 through the air vent 217.
The first fine separation mechanism 220 in the present invention includes a fine separation chamber 221, the fine separation chamber 221 is located at one side of the coarse separation chamber 211, a fourth partition board 222 is disposed at one side of the fine separation chamber 221 close to the coarse separation chamber 211, and a certain distance is provided between the fine separation chamber 221 and the coarse separation chamber 211, so that a first transition chamber 250 is formed between the fourth partition board 222 and the first partition board 213, a first small hole oil return groove 260 is concavely disposed at the bottom of the first transition chamber 250, and oil separated from oil gas separated from the first coarse separation chamber 211 after entering the first transition chamber 250 falls to the bottom of the first transition chamber 250 and enters the first small hole oil return groove 260. The fourth baffle 222 is provided with air inlet holes 223 for oil gas, the fourth baffle 222 is also provided with a filter 224, the filter 224 is attached to the air inlet holes 223, the bottom of the filter is provided with an air outlet, and filter cotton for filtering small molecule oil gas is arranged in the filter 224. The oil gas after the first separation will strike the fourth separator 222 after passing through the first transition chamber 250 and enter the filter 224 through the air inlet holes 223 distributed on the fourth separator 222, the oil gas is further separated after contacting with the filter cotton in the filter 224, and the separated gas is discharged from the bottom of the filter 224. A PCV valve 240 is disposed between the fine separation chamber 221 and an intake manifold side 270 of the engine, and the gas exhausted from the filtering device 224 passes through the PCV valve 240 and then enters the intake manifold side 270 of the engine, and meanwhile, a one-way valve is disposed at a junction between the part load side oil-gas assembly 2 and the intake manifold side 270 of the engine, so that the separated gas can be ensured to enter the intake manifold side 270, and the gas in the intake manifold side 270 does not flow back into the part load side oil-gas assembly 2. The bottom of the fine separation chamber 221 is provided with a fine separation oil storage tank 225 concaved downwards, and the oil in the oil gas after fine separation is discharged from the bottom of the filtering device 224 and falls into the fine separation oil storage tank 225.
In the present invention, the second coarse separation mechanism 310 and the second fine separation mechanism 320 in the full-load side oil and gas assembly 3 have the same structure as the first coarse separation mechanism 210 and the first fine separation mechanism 220, and a second transitional chamber 340 between the second coarse separation mechanism 310 and the second fine separation mechanism 320, a second small-hole oil return tank 350 below the second transitional chamber 340, and a second fine separation oil storage tank 360 below the side of the second fine separation mechanism 310 away from the second transitional chamber 340 are also provided in the full-load side oil and gas assembly 3, and the partial-load side oil and gas assembly 2 is different from the full-load side oil and gas assembly 3 in that it further has the PCV valve 240. Meanwhile, a fifth partition plate 370 extending downwards is arranged at the top of the second transition cavity 340 of the full-load side oil-gas separation mechanism 3, after the oil gas separated for the first time and leaving from the second coarse separation mechanism 310 enters the second transition cavity 340, the oil separated from the oil gas falls to the bottom of the second transition cavity 340 and enters the second small-hole oil return groove 350, meanwhile, the oil gas also impacts the fifth partition plate 370 to separate the oil gas again, and then the oil gas separated for the first time enters the clean air pipe side 380 after passing through the second fine separation mechanism 320.
In the present invention, one side of the part load side oil and gas assembly 2 is also provided with the oil filler cap 4 opened on the separator body, and the oil filler cap 4 is used for adding engine oil into the engine.
In the invention, a mounting hole 5 for placing a high-voltage coil is arranged between a full-load side oil-gas assembly 3 and a partial-load side oil-gas assembly 2 on a separator body plate 1.
In the invention, the peripheral edge of the separator body plate 1 is provided with mounting screw holes 6.
In the invention, the peripheral edge of the separator body plate 1 is provided with an overflow gap.
The invention is provided with two oil-gas separation mechanisms, namely a partial load side oil-gas separation mechanism and a full load side oil-gas separation mechanism, which are respectively connected with a clean air pipe behind an air filter and an air inlet manifold side. One side of the clean air pipe behind the air filter is connected with a supercharger, so that the pressure difference between the crankcase Pressure (PCC) and the pressure difference between the air inlet channel (PIM) and the clean air pipe (PB-TC) determines the trend of crankcase blowby gas. When the supercharger does not work, PB-TC is larger than PCC and larger than PIM, the blowby gas path is a first separation path, and separation is carried out through a partial load side oil-gas separation mechanism; after the supercharger is in operation, PIM is more than PCC and more than PB-TC, the blowby gas path is a second separation path, and oil and gas are separated through the full-load side oil-gas separation mechanism. Oil gas with different loads can be separated through the two oil-gas separation assemblies, so that the separation process is more refined, and the separation efficiency is improved.
Claims (4)
1. The utility model provides an independent oil and gas separator in two-chamber which characterized in that: the device comprises a separator body plate, a full-load side oil-gas separation assembly and a partial-load side oil-gas separation assembly; the partial load oil-gas separation assembly is arranged on the separator body and comprises a first coarse separation mechanism, a first fine separation mechanism communicated with the first coarse separation mechanism, and a crankcase blow-by gas first air inlet which is arranged on the separator body plate and communicated with the first coarse separation mechanism, and a first outlet which is communicated with an air inlet manifold of an engine at one side of the first fine separation mechanism away from the first coarse separation mechanism; a PCV valve is arranged between the first fine separation mechanism and the first outlet;
the full-load side oil-gas separation assembly is arranged on the separation body plate and is positioned at the opposite side of the partial-load side oil-gas separation assembly, the full-load side oil-gas separation assembly comprises a second coarse separation mechanism, a second fine separation mechanism communicated with the second coarse separation mechanism, and a crankcase blow-by gas second air inlet which is arranged on the separator body plate and is communicated with the second coarse separation mechanism, and one side of the second fine separation mechanism away from the second coarse separation mechanism is communicated with a clean air pipe behind an air filter of the whole vehicle;
the first coarse separation mechanism comprises a coarse separation cavity arranged on the separator body, an opening communicated with the crankcase blowby gas first air inlet is formed in the bottom of the coarse separation cavity, a first partition plate extending upwards is arranged on the right side of the bottom opening of the coarse separation cavity, a second partition plate inclined to the left side of the first partition plate is connected to the top end of the first partition plate, a filter plate extending to the first partition plate is arranged on one side, close to the bottom of the coarse separation cavity, of the second partition plate, a third partition plate extending downwards is arranged at the top of the coarse separation cavity, and a vent is formed between the third partition plate and the second partition plate; the second coarse separation mechanism has the same structure as the first coarse separation mechanism;
the first fine separation mechanism comprises a fine separation cavity, the fine separation cavity is positioned at one side of the coarse separation cavity, a fourth baffle is arranged at one side of the fine separation cavity, which is close to the coarse separation cavity, air inlet small holes for passing oil gas are distributed on the fourth baffle, a filter device is further arranged on the fourth baffle, the filter device is attached to the air inlet small holes, an air outlet is formed in the bottom of the filter device, and filter cotton for filtering small molecular oil gas is arranged in the filter device; the second fine separation mechanism has the same structure as the first fine separation mechanism;
a first transition cavity is formed in the area between the first coarse separation mechanism and the first fine separation mechanism, and a first small hole oil return groove concaved downwards is formed in the bottom of the first transition cavity; a second transition cavity is formed in the area between the second coarse separation mechanism and the second fine separation mechanism, a second small hole oil return groove concaved downwards is formed in the bottom of the second transition cavity, and a fifth partition plate extending downwards is arranged at the top in the second transition cavity;
a first fine separation oil storage tank with a diaphragm valve is arranged below one side of a fine separation cavity in the first fine separation mechanism, which is far away from a coarse separation cavity of the first fine separation mechanism; a second fine separation oil storage tank with a diaphragm valve is also arranged below one side of the fine separation cavity of the second fine separation mechanism, which is far away from the coarse separation cavity of the second fine separation mechanism, and the second fine separation oil storage tank is positioned below the PCV valve;
a one-way valve is arranged at the communication part of the first fine separation mechanism and the air inlet manifold; and a one-way valve is also arranged at the communication part of the second fine separation mechanism and the clean air pipe behind the engine air filter.
2. The dual-chamber independent oil and gas separator of claim 1, wherein: the separator body plate is provided with a mounting hole which is positioned between the full-load side oil-gas assembly and the partial-load side oil-gas assembly and used for placing a high-voltage coil.
3. The dual-chamber independent oil and gas separator of claim 1, wherein: the separator body plate is provided with an oil filler cap for adding engine oil, and the oil filler cap is positioned on one side of the first coarse separation cavity, which is far away from the first fine separation cavity.
4. The dual-chamber independent oil and gas separator of claim 1, wherein: the peripheral edge of the separator body plate is provided with a mounting screw hole and an overflow gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811126579.0A CN109113833B (en) | 2018-09-26 | 2018-09-26 | Dual-cavity independent oil-gas separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811126579.0A CN109113833B (en) | 2018-09-26 | 2018-09-26 | Dual-cavity independent oil-gas separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109113833A CN109113833A (en) | 2019-01-01 |
| CN109113833B true CN109113833B (en) | 2024-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811126579.0A Active CN109113833B (en) | 2018-09-26 | 2018-09-26 | Dual-cavity independent oil-gas separator |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11635006B2 (en) * | 2019-06-12 | 2023-04-25 | Kubota Corporation | Blow-by gas recirculation device |
| CN114251156A (en) * | 2020-09-21 | 2022-03-29 | 深圳臻宇新能源动力科技有限公司 | Oil-gas separator |
| CN112727626B (en) * | 2020-12-31 | 2023-03-24 | 宁波裕隆汽车制泵有限公司 | Cylinder head cover for engine |
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| CN209704670U (en) * | 2018-09-26 | 2019-11-29 | 绵阳新晨动力机械有限公司 | A kind of two-chamber independence gs-oil separator |
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